Files Top Hat xGt3 to ibm - Google Seer x .rks-lli l aley dub 4· C secure l http

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Files Top Hat xGt3 to ibm - Google Seer x .rks-lli l aley dub 4· C secure l https://app.tophat.com/e/074366/ass.gned × Dismiss How likely are you to recommend Top Hat to your closest friends? 10 very unlikely Neutral Very likely Assigned as Question 6 Equal or Unequal variance? When running the Student'st-test, when should you use the test for unequal variance? Use type 3 for unpaired data if the sample variances are not the same. For example, if the variance for the first dat a set is 3.2, but the variance for the second data set is 4.1. Use type = 3 if the method of obtaining the sample measurements is different, such as using a digital thermomente r for one data set and an analog thermometer for the other set of samples. Use type-2 if the calculated variances for unparied samples are approximately equal; it, for example s1 = 51. 52 and s2 | Use type = 3 if the measurements were obtained using the same method for the two data sets, for example if conce ntrations for both sets of samples were obtained using the same gas chromatograph. Unanswered Assigned as Question 7 ANOVA 5:28 PM 11/28/2017 Type here to search

Explanation / Answer

Answer-

We should test for unequal variances when sample variances are significantly different from each other.

So option A is correct.

Thanks!

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